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Ulmus parvifolia 'Seiju'

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Ulmus parvifolia 'Seiju'
Seiju Elm bonsai
SpeciesUlmus parvifolia
Cultivar'Seiju'
OriginUS

The Chinese Elm cultivar Ulmus parvifolia 'Seiju' is a dwarf variety, a sport of 'Hokkaido'.[1]

Description

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'Seiju' is described as smaller than Catlin and faster growing than Hokkaido, distinguished from the latter by its larger leaves.[2]

Pests and diseases

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The species and its cultivars are highly resistant, but not immune, to Dutch elm disease, and unaffected by the Elm Leaf Beetle Xanthogaleruca luteola.[3]

Cultivation

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The tree is commercially available in the United States and Australia where it is popular as a bonsai subject.[4] The tree was also listed in the UK until 2002.

Accessions

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North America

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Europe

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Nurseries

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North America

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(Widely available)

Australasia

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References

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  1. ^ Santamour, Frank S.; Bentz, Susan E. (May 1995). "Updated Checklist of Elm (Ulmus) Cultivars for use in North America". Journal of Arboriculture. 21 (3): 122–131. Retrieved 20 June 2016.
  2. ^ Photograph of 'Seiju' branch and leaves
  3. ^ "Elm Leaf Beetle Survey". Archived from the original on 2011-07-19. Retrieved 17 July 2017.
  4. ^ Young, H. C. & Young, S. (1980), Intern. Bonsai, 2(3): 28, 1980